The purpose of this study was to explore the effectiveness of implementing high quality assisting programs in vocational high schools, a preliminary scheme for the upcoming twelve-years compulsory education. Through a questionnaire survey, we were able to construct six indicators for evaluating the quality of vocational high schools: administrative efficiency, curriculum development, teacher profession, student learning, technical education, and nearby schooling. Four main findings were obtained. First, the effectiveness of implementing high quality assisting programs in private vocational high schools was significantly higher than that in public vocational high schools. Second, after implementing high quality assisting programs in vocational high schools, the gap between urban and rural schools disappeared; the implementation of high quality assisting programs in vocational high schools can thus provide a solid foundation for the upcoming twelve-years compulsory education. Third, the larger the school, the better the implementation; more specifically, large schools were significantly better than small schools in “enhancing administrative efficiency”, “developing school-based curricula”, “developing teacher profession”, and “providing students with greater diversity in learning”. Fourth, teachers with administrative duties rated “developing school-based curricula” and “providing students with greater diversity in learning” significantly higher than teachers without administrative duties.